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nvd[email protected]NVD:CVE-2021-26906
HistoryFeb 18, 2021 - 8:15 p.m.

CVE-2021-26906

2021-02-1820:15:12
CWE-404
[email protected]
web.nvd.nist.gov

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

57.0%

JSON

An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.

Affected configurations

NVD
Node
digiumasteriskRange13.0.0–13.38.2
OR
digiumasteriskRange16.0.0–16.16.1
OR
digiumasteriskRange17.0.0–17.9.2
OR
digiumasteriskRange18.0–18.2.1
OR
digiumcertified_asteriskMatch16.8-
OR
digiumcertified_asteriskMatch16.8cert1-rc1
OR
digiumcertified_asteriskMatch16.8cert1-rc2
OR
digiumcertified_asteriskMatch16.8cert1-rc3
OR
digiumcertified_asteriskMatch16.8cert1-rc4
OR
digiumcertified_asteriskMatch16.8cert2
OR
digiumcertified_asteriskMatch16.8cert3
OR
digiumcertified_asteriskMatch16.8cert4
OR
digiumcertified_asteriskMatch16.8cert4-rc1
OR
digiumcertified_asteriskMatch16.8cert4-rc2
OR
digiumcertified_asteriskMatch16.8cert4-rc3
OR
digiumcertified_asteriskMatch16.8cert4-rc4
OR
digiumcertified_asteriskMatch16.8cert5

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4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

57.0%

JSON
Related for NVD:CVE-2021-26906
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